JP5194338B2 - Masking Gerber data creation device, mask Gerber data creation method, and mask Gerber data creation program for solder printing mask - Google Patents

Description

  The present invention relates to a gerber data creation apparatus, creation method, and creation program for a solder printing mask used for solder cream printing of a printed circuit board (PCB) used in an electronic device or the like, and more particularly by surface mounting technology (SMT). The present invention relates to a gerber data creation device, a creation method, and a creation program for a solder printing mask used for solder cream printing in printed circuit board assembly in which components are automatically mounted.

Generally, each component or element mounted on a printed circuit board (board) is fixed and mounted on the board by solder that joins electrode parts of these parts and the land that is a part of the wiring pattern on the board. Yes. The mounting procedure of the above parts on the board is as follows. First, solder cream is printed on the land on the board prior to mounting the parts, and then the board is heated with the parts placed on the solder cream. Then cool again. As a result, the solder cream is once melted and solidified, and the parts and the like are fixed to the land.
A solder printing mask is used for printing and applying the solder cream onto the substrate. The solder printing mask has an opening (mask opening) at a position corresponding to the land location on the substrate. By applying the solder cream on the substrate through this mask, only the solder cream that has passed through the opening is exposed. It is applied on the land.
As described above, the solder printing mask is provided with mask openings at positions corresponding to the land portions on the printed board. When processing the mask openings in the solder printing mask, the mask shape to be processed is designated. Gerber data is used.

When creating the solder print mask Gerber data, first, for each component mounted on the printed circuit board, the land pattern shape (component pattern shape) used for mounting the component or the like in advance is set to CAD or the like. A library (mounting library) is configured by the means described above. In addition, the mask opening specifications, which are rules for determining the mask opening shape and dimensions (mask opening shape) according to the component pattern shape, are determined in advance for each of the various component pattern shape types. Are summarized as a mask opening reference.
Further, for each component registered in the mounting library, mask opening shape data is created in accordance with the mask opening specification and registered in the database.

After that, from the CAD data of the printed circuit board, board information (placement position and placement angle on the mask for each board when printing on a plurality of boards with one mask) and component placement information (each for each part etc.) Printed circuit board mounting data including a mounting position on the board, a component pattern shape identification number, a mounting angle, and the like) is extracted.
Then, based on the printed board mounting data, the mask opening shape of each mounted component is arranged on the board, and print mask Gerber data is output by means such as CAD.

  Here, registration of the created mask opening shape data in the database is performed each time a part or the like is newly added to the mounting library. At this time, in the conventional mask opening shape data creation method, a mask opening specification to be applied to the component pattern shape of the part is selected from the mask opening reference according to the type of the component pattern shape, and the CAD is selected according to the opening specification. The use of the graphic editing function of means such as a tool is used to create a mask opening shape for each part by editing the data for each pin of the part (that is, for each land) by data input or copying.

JP-A-7-209204

  However, in the above-described mask opening shape graphic data input, the graphic data indicating the mask opening shape is used by operating the CAD tool for each pin (land) of each part. This is a very cumbersome and time-consuming operation because it is performed by a procedure such as inputting a single graphic data or copying one created figure data by the number of pins. In addition, the mask opening shape editing and registration work using such a CAD tool requires skill of the CAD tool to be used.

  Also, the editing of the mask opening shape data is an operation of inputting data on the shape and position assuming a mask opening shape determined by applying an opening specification to the component pattern shape while referring to the component pattern shape. There was a problem that it was impossible to check the overlap between the part pattern shape and the created mask opening shape, and to check input mistakes when editing data.

Conventionally, the mask opening shape created for the component pattern shape newly registered in the mounting library is checked (for example, there is a mask opening shape that has not yet been created for the newly registered component, or a mask that has been created. When checking whether the opening shape protrudes from the part pattern shape, etc., firstly, the Gerber data of the solder printing mask of the entire board on which the new part is mounted is created by the above means, and the Gerber viewer is used. Etc., and overlaid with the land pattern (artwork) Gerber data for the substrate.
For this reason, a subtle mask opening shape input error may not be found in the superimposed display of Gerber data, which adversely affects productivity. In addition, in the overlay display by the Gerber viewer, the pin portion of each component of the vast Gerber data created for the entire board is enlarged and checked one by one, which necessitates an inefficient check operation. It was.

In view of the above object, the present invention provides a solder printing mask capable of saving labor required for creating mask opening shape data for each part, which was performed when creating Gerber data for a solder printing mask. An object of the present invention is to provide a Gerber data creation device, a Gerber data creation method, and a mask Gerber data creation program.
In addition, Gerber data for solder printing masks, which was previously required when confirming the created mask opening shape, eliminates the need for checking by overlay display with Gerber data for solder printing masks and Gerber data for artwork. It is another object of the present invention to provide a creation device, a Gerber data creation method, and a mask Gerber data creation program.

  In order to achieve the above object, the solder printing mask Gerber data creation device according to the first embodiment of the present invention is applied to the land shape of a component mounted on a board, and solder printing used for mounting the component. A mask opening shape for printing solder on the land is calculated by applying an opening specification database for pre-registering an opening specification for calculating the mask opening shape of the mask and applying the selected opening specification to the land shape of the land on which the component is mounted. And a mask opening shape calculating means.

The operation of calculating the mask opening shape by the solder printing mask Gerber data creation apparatus according to the first aspect of the present invention will be described below with reference to FIGS.
FIG. 1 is a principle configuration diagram of a mask opening shape calculation function unit in the Gerber data creation device according to the first embodiment of the present invention, and FIG. 2 is an operation explanatory diagram of the mask opening shape calculation function unit of FIG. 3 is a flowchart of a mask opening shape calculation portion by the Gerber data creation method according to the second embodiment of the present invention.

  As shown in FIG. 1, the Gerber data creation apparatus includes an opening specification database 31 and a mask opening shape calculation unit 10. In the opening specification database 31, opening specifications for calculating a mask opening shape of solder printing used for mounting a component by being applied to the land shape of the component mounted on the substrate are registered in advance. An example of such an opening specification will be described with reference to FIG.

Reference numeral 100 in FIG. 2 indicates a land on the substrate to be bonded to one electrode of the mounting component, and reference numeral 101 indicates a mask opening shape (mask opening shape) through which the solder cream printed on the land 100 passes. Indicates.
Reference numeral 102 indicates an example of land shape data that defines the shape of the land 100. The land shape data 102 includes a pattern number (in the example, “PSA10108”) for uniquely identifying each land shape data 102, and a library (mounting library) in which each land shape data is databased for various mounting parts. In this case, each land shape data can be identified by this pattern number.
The land shape data 102 includes a shape data portion (“RECT, −475, −900, 475,900” in the example). In this case, the shape of the land 100 is a rectangle whose coordinates are (−0.475, −0.9) and coordinates (0.475,0.9) (unit is mm) with the center of the pin of the mounted component as the coordinate origin. Indicates that there is.

Reference numeral 103 indicates an opening specification for calculating the mask opening shape 101 by being applied to the land shape data 102.
In the example shown in the figure, the aperture specification 103 uses the coordinate values (−A1, −B1) and (A2, B2) of the two diagonal points as arguments for a land shape of a type having a rectangular shape. , Coordinates (-A1 + 0.08, -B1 + 0.08), (-A1 + 0.08, B2-0.08), (0.0, B2-0.08), (A2-0.1,0.0), (-A1 + 0.08, B1 + 0.08 ) Is an opening specification that defines a pentagonal mask opening shape.
In this way, the opening specification 103 uses the parameters (coordinate values and dimensions of predetermined points of the land shape) that define the land shape and dimensions included in the individual land shape data as arguments, and the mask opening corresponding to the land shape. Determine the shape and dimensions (mask opening shape).
Then, the opening specifications 103 are defined and converted in advance into a format that can be read by a computer or the like for each type of land shape for various parts, and these are registered in the opening specification database 31. Alternatively, since the shape of the mask opening is determined according to the shape of the land that passes through the opening and is subjected to solder printing, the opening specification 103 is defined and converted into data for each type of mask opening shape. It may be registered in the database 31.

Next, the operation of the mask opening shape calculating means 10 shown in FIG. 1 will be described with reference to the mask opening shape calculating method shown in FIG.
First, in step S11, for various parts, the opening specifications 103 are defined and converted into data in a format that can be read by a computer or the like for each land shape type (each different mask opening shape type). It is registered in the opening specification database 31 in advance.
Next, in step S12, the land shape for calculating the mask opening shape is input to the mask opening shape calculating means 10. In step S13, the type of opening specification (opening type) for calculating the mask opening shape corresponding to the land shape is selected, and the selected opening type is input.
Thereafter, in step S14, the mask opening shape calculation means 10 reads the opening specification corresponding to the input opening type from the opening specification database 31, and further applies the read opening specification to the land shape input in step S12. Then, a mask opening shape corresponding to the land shape is calculated. If necessary, the calculated mask opening shape can be associated with the corresponding land shape in the database and used again, thereby eliminating the need to recalculate the mask opening shape for the same land shape. It is. In addition, in order to check the calculated mask opening shape, it is preferable to display the shape overlapping the land shape.

  Therefore, the solder printing mask Gerber data creation method according to the second embodiment of the present invention calculates the solder printing mask opening shape used for mounting the component by applying it to the land shape of the component mounted on the substrate. By registering the opening specification to be registered in the opening specification database in advance, selecting any opening specification from the opening specification database, and applying the selected opening specification to the land shape of the land on which the component is mounted, The mask opening shape for printing solder on the land is calculated.

Alternatively, the solder print mask Gerber data creation device may be configured by a computer or the like, and the computer may execute the solder print mask Gerber data creation program according to the third embodiment of the present invention to obtain Gerber data. Good.
At this time, by applying the solder printing mask Gerber data creation program to the land shape of the component mounted on the board, the opening specifications for calculating the solder printing mask opening shape used for mounting the component are registered in advance. The procedure for inputting the opening specifications to be selected from the opening specification database and applying the input opening specifications to the land shape of the land on which the component is mounted, thereby creating a mask opening shape for printing solder on the land. And a calculation procedure.

Next, a Gerber data creation operation by the solder print mask Gerber data creation apparatus according to the first aspect of the present invention will be described below with reference to FIGS.
FIG. 4 is a principle configuration diagram of the Gerber data creation function unit in the Gerber data creation device according to the first embodiment of the present invention. As shown in FIG. 4, the Gerber data creation device includes an implementation library 31 and Gerber data creation means 20. In the mounting library 31, land shapes of components mounted on the board are registered in advance.

FIG. 5 is a flowchart of the Gerber data creation portion by the Gerber data creation method according to the second embodiment of the present invention.
In step S21, the Gerber data creating means 20 inputs board mounting data for which Gerber data is to be created. The mounting data includes board information extracted from CAD data of the printed circuit board (such as an arrangement position and an arrangement angle on the mask for each board when printing on a plurality of boards with one mask) and component arrangement information (each Mounting position on each substrate, part pattern shape identification number, mounting angle, etc.).

  In step S22, the Gerber data creation means 20 selects each component included in the mounting data one by one, and in step S23, refer to the mounting library 31 for the land shape for fixing the selected component to the circuit board. To identify. In step S24, the mask opening shape calculated in advance by the mask opening shape calculating means 10 (FIG. 1) for the specified land shape is arranged according to the mounting position and mounting angle of the component included in the mounting data. , Create Gerber data. Steps S22 to S24 are repeated for all components included in the mounting data (S25).

  Therefore, in the solder printing mask Gerber data creation method according to the second embodiment of the present invention, the land shape of each component is registered in the mounting library in advance, and the land shape of each component mounted on the substrate is selected from the mounting library. Identifying and placing mask aperture shapes calculated for the identified land shapes to create Gerber data for a mask used for board solder printing.

  Furthermore, the solder printing mask Gerber data creation program according to the third embodiment of the present invention calculates the solder printing mask opening shape used for mounting the component by applying the program to the land shape of the component mounted on the board. The procedure for inputting the opening specification to be selected from the opening specification database in which the opening specification to be registered is registered, and applying the input opening specification to the land shape of the land on which the component is mounted, thereby soldering to the land. And a procedure for calculating a mask opening shape for printing.

  As described above, the mask opening shape calculated by the mask opening shape calculating unit 10 can be registered in the database 33 in association with the land shape that is the basis of the calculation. In this case, in step S24, the Gerber data creating means 20 may read out the mask opening shape corresponding to the specified land shape from the database 33 and arrange it.

  Note that the land shape of each part may be registered in the mounting library 31 in the form of a part pattern shape in which a plurality of land shapes necessary for mounting one part are collected. At this time, the mask opening shape calculated by the mask opening shape calculating means 10 may also be calculated as a group of a plurality of mask opening shapes necessary for mounting one component and registered in the database 33.

Further, a macro database for registering a macro instruction of processing control data for opening an opening having a calculated mask opening shape in a mask opening shape unit may be further provided. At this time, Gerber data may be created by combining macro instructions corresponding to the calculated mask opening shapes for each component mounted on the substrate.
Furthermore, when any one of the mask opening shapes on the created Gerber data protrudes from the land shape corresponding to the mask opening shape, that fact may be displayed as an error.

According to the present invention, the mask opening shape data for each part, which has been used when creating the Gerber data for the solder printing mask, can be selected only by selecting one of the opening specifications registered in the opening specification database. Thus, it is possible to greatly reduce the labor required for creating the mask opening shape data.
In addition, when each mask opening shape data is created, it becomes possible to check the mask opening shape by superimposing it on the land shape. It is possible to omit an inefficient check based on gerber data and overlay display.
In addition, by making it possible to find input mistakes with subtle mask opening shapes, it contributes to improved productivity.
In addition, by centrally managing such mask opening shape data in the manufacturing engineering department, each production base automatically creates and outputs Gerber data for mask opening simply by using centrally managed mask opening shape data. It becomes possible to do.

Hereinafter, preferred embodiments of a Gerber data creation device according to the present invention will be described in detail with reference to the accompanying drawings. FIG. 6 is a block diagram of a first embodiment of the Gerber data creation apparatus according to the present invention.
The Gerber data creation device 1 includes a calculation unit 2 realized by a computer such as a computer, a display unit 3 such as a CRT or a liquid crystal display that displays data processed by the calculation unit 2 and data to be input to the computer 2 An input unit 4 such as a keyboard or a mouse for the user to input data to the computer 2 and operate the Gerber data creation device 1, and an output unit 5 for outputting the Gerber data created by the Gerber data creation device 1 And comprising.

The calculation unit 2 stores an arithmetic processing unit 6 for executing Gerber data generation processing, a Gerber data generation program 9 executed by the arithmetic processing unit 6 according to the present invention, and data necessary for executing the program 9. And an interface 8 with the display unit 3, the input unit 4, and the output unit 5 described above.
Further, the calculation unit 2 includes a CAD mounting library 31, an opening specification database 32, an opening shape database 33, a macro database 34, a mounting database 35, a mask opening Gerber data storage unit 36, and an error part database 37, which will be described below. Including.

The CAD mounting library 31 includes, for each component and element mounted on a printed circuit board (board), a pattern number, an external dimension, a center coordinate of the component, and a pin ( Data such as the coordinates of the electrode portion, the reference pin number, the type of land joined to each pin, the shape and size of each land, etc. is a library registered by means such as CAD.
Since the data for one part unit includes the number of pins of the part, the coordinates of each pin, and the land shape joined to each pin, the land shape dimensions joined to all the pins of the part by this data. And its location. These patterns are collectively referred to as a component pattern shape.

With reference to FIGS. 7 and 8, data contents of one component pattern shape registered in the CAD mounting library 31 will be described. FIG. 7 is a diagram showing an outline of a certain mounted component and its land, and FIG. 8 is a diagram showing data contents in the corresponding CAD mounting library 31 corresponding to this component.
In FIG. 7, a two-dot chain line 51 indicates the outer shape of the mounting component, and a solid line 52 indicates a land shape bonded to each of the two electrodes of the mounting component.

In FIG. 8, the data content in the CAD mounting library 31 is that the pattern number of the part pattern shape relating to this part is “PSA10108”, the number of pins is two, and the reference pin serving as the coordinate origin is the first pin. The center coordinates of the pins with the center of the first pin as the coordinate origin are (0,0) and (3.050,0), and the part outline is the coordinates (-0.225, -950), (3.275, -0.95) , (3.275, 0.95) and (−0.225, −0.95) as vertices, the center coordinates of which are (1.525, 0). Here, all coordinate values indicate mm (millimeter).
The data contents in the CAD implementation library 31 are such that each land shape is a rectangle (RECT), and the diagonal vertex is a relative coordinate (-0.475, -0.9) with each pin center coordinate as a coordinate origin. And (0.475, 0.9).

The opening specification database 32 calculates the opening specifications for calculating the mask opening shape of solder printing used for mounting the component by applying to the data content of the component pattern shape for each type of the component pattern shape. This is a database defined and converted into a format readable by the arithmetic processing unit 6 for each type of mask opening shape.
FIG. 9 is a diagram showing an example of the opening specification applied to the rectangular land shape shown in FIG.
One opening specification data includes an opening type (“CHIP1” in the example of FIG. 9) that is an identification number for identifying the opening specification according to the shape type of the part pattern or the opening shape type of the mask opening, and the part pattern. An argument declaration part for declaring a land shape designation value extracted from a shape as an argument used in a mask opening shape calculation formula (in the example of FIG. 9, two diagonal coordinate values (A1, B1) are added to a rectangular land shape) And (A2, B2)) and a mask shape defining section for defining a component pattern shape using the declared arguments.

In the example of the opening specification shown in FIG. 9, the relative coordinates (-A1, -B1) and (A2, B2) of the diagonal vertices of the land shape shown in the part pattern shape data of FIG. 8 defining the rectangular land shape. ((-0.475, -0.9) and (A2, B2)) as arguments, the mask aperture shape for the land shape of the first pin is expressed as coordinates (-A1 + 0.08, -B1 + 0.08), (-A1 + 0.08, B2-0.08), (0.0, B2-0.08), (A2-0.1,0.0), (0.0, -B1 + 0.08) is defined as a polygon (pentagon) whose vertex is the land of the second pin The mask opening shape for the shape is (0.0, -B1 + 0.08), (-A1 + 0.1,0.0), (0.0, B2-0.08), (A2-0.08, B2-0.08), (A2-0.08, -B1 +0.08) is defined as a polygon with a vertex.
FIG. 10 is a diagram showing an example of the mask opening shape calculated by applying the opening specification “CHIP1” shown in FIG. 9 to the part shape pattern having the pattern number “PSA10108” shown in FIG.

  In the opening shape database 33, the Gerber data creation program 9 applies any opening specification registered in the opening specification database 32 to each part pattern shape registered in the CAD mounting library 31 by a method described later. It is a database for registering the calculated mask opening shape data.

The macro database 34 calculates an extended Gerber output macro that is a set of processing control data (macro commands) that is output to the metal mask processing machine when each calculated mask opening shape is processed into a solder printing mask. This is a database registered for each mask opening shape.
Here, the extended Gerber output macro registered in the macro database 34 is registered for each set of processing control data necessary for processing one mask opening which is a minimum graphic unit. Therefore, for example, when a plurality of lands are used for mounting one component and solder printing is separately performed on each land, a macro in which processing control data for one mask opening for solder printing on one land is used as a unit. The instruction is registered.

The mounting database 35 is obtained from the CAD data of the printed circuit board, and includes board information (placement position and placement angle on the mask for each board when printing on a plurality of boards with one mask) and component placement information (each part And the like, the mounting position on each board, the part pattern shape identification number, the mounting angle, etc.).
The mask opening Gerber data storage unit 36 is a storage unit for storing the mask Gerber data of the solder printing mask for each printed circuit board created by the Gerber data creation device 1.
The error component database 37 is a database for registering error contents generated when creating Gerber data with an error occurrence date (gerber data creation processing date).

  Returning to FIG. 6, the Gerber data creation program 9 stored in the storage unit 7 and executed by the arithmetic processing unit 6 is registered in the opening specification database 32 for the part pattern shape registered in the CAD mounting library 31. Based on the opening shape editing / registration module 10 for calculating the mask opening shape by applying the opening specification and registering it in the opening shape database 33 and the mounting data of the printed circuit board registered in the mounting database. And a Gerber data creation module 20 that creates the Gerber data by arranging the mask opening shapes registered in the shape database 33.

  FIG. 11 is a schematic configuration diagram of the opening shape editing / registration module 10 shown in FIG. As illustrated, the opening shape editing / registration module 10 includes a mask opening shape calculation module 11, a mask opening shape display module 12, and a macro data creation module 13.

  The mask opening shape calculation module 11 receives the component pattern shape data registered in the CAD mounting library 31 and the opening type designated by the user via the input unit 4 in order to specify the opening specification to be applied to the component pattern shape. The aperture specification corresponding to this aperture type is read out from the aperture specification database 32 and applied to the input component pattern shape data to calculate the mask aperture shape for this component pattern shape. The mask opening shape data is registered in the opening shape database 33 with an opening shape number for identifying each opening shape, and is output to the subsequent mask opening shape display module 12 and the macro creation module 13.

The mask opening shape display module 12 superimposes the component pattern shape input to the opening shape editing / registration module 10 and the mask opening shape calculated by the mask opening shape calculation module 11 on this component pattern shape. 3 is displayed.
The macro data creation module 13 corresponds to the mask opening shape calculated by the mask opening shape calculation module 11. An extended Gerber output macro is created, and the extended Gerber output macro is registered in the macro database 34 with a macro number for identifying each macro.
Here, the extended gerber output macro is processing control data for processing the created mask opening shape opening by controlling the metal mask processing machine, and is applied to one land which is the minimum figure unit of the mask opening shape. The processing control data for processing one mask opening is set as a group of macro commands with one corresponding mask opening as a unit.
The mask opening shape display module 12 stores the macro number in the opening shape database 33 in association with the calculated mask opening shape data.

FIG. 12 is a schematic configuration diagram of the Gerber data creation module 20 shown in FIG. As illustrated, the Gerber data creation module 20 includes a macro conversion / combination module 21, a Gerber data check module 22, and an error display module 23.
The macro conversion / combination module 21 acquires each component mounted on the printed circuit board based on the printed circuit board mounting data registered in the mounting database, and sets a pattern number for specifying the component pattern shape of each component. Read from the CAD implementation library 31 and obtain.
Then, the macro number of the extended Gerber output macro for processing the mask opening shape corresponding to the pattern number is read from the opening shape database 33, and the extended Gerber output macro corresponding to the macro number is read from the macro database 34. Then, this extended Gerber output macro is arranged on the mask coordinates in accordance with the on-board data to create Gerber data.

The Gerber data check module 22 checks the Gerber data created by the macro conversion / combination module 21 to determine whether there is an error in the Gerber data. If there is no error, the Gerber data is used as the mask opening Gerber data. When an error exists, the error information is added to the error occurrence date (gerber data creation processing date) and stored in the error component database 37.
Here, the error information registered in the error part database 37 includes, for example, one of the mask opening shapes on the created Gerber data protruding from the land shape corresponding to the mask opening shape or included in the mounting data. There may be a part whose part pattern shape data is not registered in the CAD mounting library 31 or a part whose opening shape data and macro data are not registered in the opening shape database 33 and the macro database 34.

The Gerber data stored in the mask opening Gerber data storage unit 36 can be output to the outside from the mask opening Gerber data storage unit 36 via the output unit 5.
The error display module 23 displays the error information stored in the error component database 37 on the display unit 3.
Hereinafter, an operation method of the Gerber data creation device 1 will be described with reference to FIGS.

FIG. 13 is an operation flowchart of the Gerber data creation device shown in FIG.
First, in step S31 to step S36, mask opening shape data corresponding to the component pattern shape of components and elements mounted on the printed circuit board is created.

In step S31, the user uses the input unit 4 in FIG. 6 to specify the component pattern shape data for the components mounted on the printed circuit board that have not yet been created with mask opening shape data. Enter. FIG. 14 shows an input screen displayed on the display unit 3 of FIG. 6 when inputting a pattern number.
The pattern number is input by inputting the pattern number of the part pattern shape for which mask opening shape data is desired to be created in the pattern name input field 101 of the opening shape DB registration / change window 100. In the example of FIG. 14, the part pattern shape “PAS10108” shown in FIGS. 7 and 8 is input.
When the user inputs a pattern number, the mask opening shape calculation module 11 in FIG. 11 extracts a corresponding part pattern shape (FIG. 8) from the CAD mounting library 31 based on the input pattern number in step S32. The component pattern shape is displayed in the component pattern shape display field 102 of FIG. 14 based on the pin coordinates (pin name), the reference pin name, and the land shape included therein.

In step S33, the user inputs an opening type that specifies an opening specification to be applied to the specified component pattern shape. FIG. 15 shows an input screen displayed on the display unit 3 in FIG. 6 when inputting the aperture type.
The opening type is input when the user inputs an opening type that specifies an opening specification to be applied to the opening type input field 103 of the opening shape DB registration / change window 100. In the example of FIG. 15, the opening specification of the opening type “CHIP1” shown in FIG. 9 is selected.

When the user inputs the aperture type, the mask aperture shape calculation module 11 in FIG. 11 reads the aperture specification data (see FIG. 9) designated from the aperture specification database 32 based on the aperture type input in step S34. The mask opening shape is automatically calculated by applying to the part pattern shape selected in step S31.
At this time, the mask opening shape calculation module 11 includes arguments included in the opening shape calculation formula for each pin defined in the mask shape definition section shown in the opening specification data (in the example of FIG. 9, A1, B1, A2, B2) is substituted with parameters (coordinate values and dimensions of predetermined points of the land shape) that determine the shape and dimensions of the lands included in the part pattern shape data of the input pattern number (in the example of FIG. 8, Substitute the land dimensions with the pin center as the coordinate origin, that is, the relative coordinates indicating the diagonal vertices of the rectangular shape are substituted, -0.475 for -A1, -0.9 for -B1, respectively. 0.475 is substituted for A2 and 0.9 is substituted for B2, and the mask opening shape and dimension (mask opening shape) corresponding to the land shape are determined.

  Then, the mask opening shape calculation module 11 outputs the graphic drawing data of the calculated mask opening shape to the mask opening shape display module 12, and based on this data, the mask opening shape display module 12 already displays the mask opening shape as the mask opening shape. The displayed part pattern shape is superimposed and displayed on the display unit 3.

In step S35, the user presses the “dimension detail display” button 105 in the opening shape DB registration / change window 100 in FIG. 15 to display an enlarged view in which the land shape for each land and the mask opening shape corresponding thereto are superimposed, It is checked whether the calculated mask opening shape is created according to the standard. 16 and 17 show a screen for checking the mask opening shape.
An enlarged enlarged view of the land shape and the corresponding mask opening shape is displayed in the enlarged enlarged view column 111 in the detailed dimension display window 110 shown in FIGS. As shown in the figure, in the enlarged enlarged view column 111, an enlarged view of the land shape and the corresponding mask opening shape is enlarged and displayed for each land, and the size of the land shape or the mask opening shape is displayed. Whether to display a land shape or a mask opening shape on the screen can be specified by a radio button 112.

  16 shows a state in which the foot dimensions (land shape dimensions) are displayed, and FIG. 17 shows a state in which the dimensions of the mask opening shape are displayed. The land shape displayed in the enlarged enlarged view column 111 can be switched by designating each pin shown in the pin list displayed in the display pin selection column 113.

  If the result of the check based on the enlarged enlarged view is normal, the user presses the “opening data registration” button 106 shown in FIG. 15 to proceed to step S36, where the mask opening shape calculation module 11 The opening shape data and the extended Gerber output macro for processing the mask opening are registered in the opening shape database 33 and the macro database 34, respectively. FIG. 18 shows a registration confirmation screen for mask opening shape data.

Registration confirmation of mask opening shape data is performed by an opening registration confirmation screen window 120. In the opening registration confirmation screen window 120, a registration pattern column 121 for inputting a pattern number of a component pattern shape corresponding to the created mask opening shape, and the created mask opening shape are the solder surface (L1 surface) and component surface of the printed circuit board. It has a pattern mounting surface designation field 122 for designating which side of the (Ln surface) is to be printed, and an inter-pin designation field 123 for inputting the inter-pin designation of the created mask opening shape.
Here, inter-pin designation designates how many patterns (lines) are allowed to exist between each pin of the component pattern shape, and the inter-pin designation value is, for example, no designation (0 The values used in advance, such as book), P3 (three), and P5 (five), are determined.

When the user inputs a mounting surface and pin-to-pin designation, the mask opening shape calculation module 11 registers information on the calculated mask opening shape in the opening shape database 33. FIG. 19 shows the contents of the opening shape database 33. The opening shape database 33 includes an opening shape number registration table and a macro number registration table.
Since the mask opening shape varies depending on the corresponding component pattern shape, the pattern mounting surface to be solder-printed, and the pin-to-pin designation value, the mask opening shape calculation module 11 performs the pattern number, pattern mounting surface, and pin of these component pattern shapes. Different mask opening shapes are created for each interval specification value, and different opening shape numbers are assigned to the respective mask opening shapes and registered in the opening shape database 33. At that time, the opening shape number assigned to the opening shape is registered in the opening shape number registration table in association with the pattern number, the pattern mounting surface, and the pin-to-pin designation value that form the basis of the opening shape.

As will be described later, the created mask opening shape is converted into an extended Gerber output macro that processes one mask opening corresponding to one land that is a minimum graphic unit, and this extended Gerber output macro is A macro number is assigned to each minimum figure unit (each mask opening) and registered in the macro database 34.
Therefore, the mask opening shape calculation module 11 assigns a macro number of an extended Gerber output macro for processing the mask opening corresponding to the land for each land (pin) of the component pattern shape corresponding to the calculated mask opening shape. Then, the opening shape number assigned to the mask opening shape in the opening shape number registration table, each land number (pin number) of the component pattern shape corresponding to this mask opening shape, and the mask opening corresponding to this land are processed. In association with the macro number of the extended Gerber output macro to be registered in the macro number registration table.

  At this time, the extended Gerber output macro differs depending on the arrangement angle of the parts (or the arrangement direction, for example, 0 °, 90 °, 180 °, 270 °). Therefore, the extended Gerber output macro is created for each predetermined angle. Different macro numbers are assigned. In the macro number registration table, the component arrangement angle is also registered, and the macro number is also registered for each arrangement angle.

Next, the mask opening shape calculation module 11 outputs the calculated mask opening shape data to the macro data creation module 13, and the macro data creation module 13 processes processing control data for processing the mask opening based on the mask opening shape data. Creates an extended Gerber output macro that is a macro instruction.
The macro data creation module 13 uses, as a unit, one mask opening corresponding to one land corresponding to one land, which is the minimum figure unit of the created mask opening shape. Create extended gerber output macro. Then, one macro number is assigned to each created extended Gerber output macro.
At this time, the macro data creation module 13 separately expands each mask opening shape when the arrangement angle (or the arrangement direction, for example, four directions of 0 °, 90 °, 180 °, and 270 °) is changed. Gerber output macros are created, and different macro numbers are assigned to them and registered in the macro database 34. The contents of such a macro database 34 are shown in FIG. In the example of FIG. 20, in the macro database 34, macro numbers MCR3790˜for each extended Gerber output macro for each of four different angles of 0 °, 90 °, 180 °, and 270 ° with respect to the same mask opening shape. Different extended Gerber output macros of MCR3793 are registered in the macro database 34.

  When registering in the macro database 34, the macro data creation module 13 may perform a duplication check so that the same extended Gerber output macro is not registered twice. For this purpose, the macro data creation module 13 creates information indicating the outer shape of the mask opening based on the mask opening shape data as a key used for comparison at the time of duplication check, and sends it to the macro database 34 together with the extended Gerber output macro. You may register ("outer shape dimension" column of FIG. 20). Then, it is determined whether or not the external shape information created for the mask opening shape to be newly registered matches the external shape information registered together with the already registered extended Gerber output macro. An extended Gerber output macro may be registered.

In step S36, the mask opening shape calculation module 11 checks whether the mask opening shape to be registered in the opening shape database 33 protrudes from the land shape. If the mask opening shape protrudes from the land shape, a protrusion flag is set in the mask opening shape data created as shown in FIG. 21 and a question is asked whether or not to register in the opening shape database 33.
Depending on the type of the mask opening shape, it may be normal for the land shape to protrude and be solder printed. In such a case, the user sets and registers the protrusion flag in the mask opening shape data.

  Through the above steps S31 to S36, mask opening shape data corresponding to the component pattern shape of components and elements to be mounted on the printed circuit board is created. The created mask opening shape data is registered in the opening shape database 33, and the extended Gerber output macro is registered in the macro database 34. Therefore, once these are created, it is sufficient to read them from these databases and use them after the next time. Therefore, steps S31 to S36 need only be executed once for a new type of component, that is, a component whose mask opening shape data or the like is not registered in the opening shape database 33 or the like.

In the following steps S37 and S38, Gerber data of a solder printing mask on the printed circuit board is created.
In step S <b> 37, the user inputs the drawing number of the printed circuit board on which the solder print mask Gerber data is to be created via the input unit 4. Here, if there are different versions of the printed circuit board and there are multiple circuit configurations for the same drawing number, the drawing number may be assigned a branch number (version number) to manage the drawing. In this case, specify this version number as well.

FIG. 22 shows a drawing number and version number input screen of the printed circuit board. When the drawing number of the printed circuit board on which the solder print mask Gerber data is to be created is input to the figure number field 131 of the data output window 130, the macro conversion / combination module 21 of the Gerber data creation module 20 shown in FIG. A list of drawing numbers and version numbers of printed circuit boards for which CAD information has already been registered is displayed in the registered drawing list 132 from the mounting database 35.
Then, from the list of drawing numbers and plate numbers displayed in the registered drawing list 132, select the printed circuit board of the drawing number and plate number for which the Gerber data for solder printing mask is to be created, and click “Add”. When the button 133 is pressed, the selected drawing number and version number are moved to the selected drawing list 132, and the drawing number and version number of the printed circuit board on which Gerber data is to be created are input.

Returning to FIG. 13, in step S38, the macro conversion / combination module 21 reads the mounting data of the printed circuit board corresponding to the selected drawing number and version number from the mounting database 35. Then, for each component mounted on the printed circuit board, the pattern number of the component pattern shape is acquired from the CAD mounting library 31, and mask opening shape data of each pattern number is acquired from the opening shape database 33.
Further, the macro conversion / combination module 21 stores the placement position (reference pin coordinates) and mounting angle of each component (component pattern shape) included in the mounting data read from the mounting database 35 and the CAD mounting library 31. Based on the registered arrangement information of each pin, the coordinates and mounting angle of each pin of each component are determined.

Then, in the opening shape registration table of the mask opening shape data (FIG. 19), the opening shape number stored corresponding to the acquired pattern number is specified and stored in the macro number registration table in association with this opening shape number. The macro number is identified, and the macro number corresponding to the determined mounting angle is acquired from the macro numbers.
Then, an extended Gerber data output macro having the same macro number as the acquired macro number is read from the macro database 34, and the extended Gerber data output macro is output together with the coordinates of each pin of each component. The output macro for outputting extended gerber data is combined with all the components included in the mounting data in the mask opening gerber data storage unit 36 to become gerber data for solder printing mask for the entire printed circuit board.

The macro conversion / combination module 21 registers error information generated when creating an extended Gerber data output macro in the error component database 37 together with the Gerber data creation processing date. In this case, the macro conversion / combination module 21 does not output the extended Gerber data output macro.
As this error information, for example, when there is a component whose component pattern shape data is not registered in the CAD mounting library 31 among the components included in the mounting data, this component together with the printed circuit board, the plate number, and the component number. Is registered with information indicating that no part pattern shape data is registered.
Further, for example, if there are parts included in the mounting data in which the opening shape data and macro data are not registered in the opening shape database 33 and the macro database 34, the printed circuit board, the plate number, the part number, Along with the pattern number of the part pattern shape data of this part number, information that the opening shape data and the macro data are not registered is registered in the opening shape database 33 and the macro database 34 corresponding to the part pattern shape.

The extended Gerber data output macro output from the macro conversion / combination module 21 is input to the Gerber data check module 22 to check whether or not the created extended Gerber data output macro protrudes from the corresponding land shape. Done.
When an overhang is detected, the Gerber data check module 22 displays the printed circuit board, the plate number, the part number mounted on the land where the overhang is detected, the pattern number of the component pattern shape data possessed by this part number, Error information indicating that the mask opening shape created with respect to the part pattern shape data protrudes from the land shape is registered in the error part database 37 with a Gerber data creation processing date. In this case, the macro conversion / combination module 21 does not output the extended Gerber data output macro.
If the protrusion is not detected, the Gerber data check module 22 outputs the extended Gerber data output macro input from the macro conversion / combination module 21 to the mask opening Gerber data storage unit 36.
Note that the Gerber data check module 22 does not perform the protrusion check for the mask opening shape for which the protrusion flag is set in the protrusion flag setting scene shown in FIG.

The error information registered in the error component database 37 in this way is displayed on the display unit 3 by the error display module 23 in the Gerber data creation module 20 shown in FIG. An error display screen is shown in FIG.
The error display is performed by the error detail display window 140. When date data is input to the search date field 141 in the window 140, the error display module 23 searches for error information generated in the Gerber data creation process on the input date, and the print in which an error occurred on that date. The drawing number and version number of the circuit board are displayed in the drawing number list 142.

When the user designates any drawing number and version number displayed in the drawing number list 142, the part number, pattern number (TLIB number), macro number (where the error occurred for that drawing number and version number) MLIB number) and error details are displayed.
By displaying error information in this way, a user who creates aperture shape data can correct and register the mask aperture shape data based on this error information, and can quickly create mask aperture Gerber data. It becomes possible.

  Although the present invention has been described in detail with reference to the preferred embodiments, specific embodiments of the present invention will be added below for easy understanding of the present invention.

(Appendix 1)
A Gerber data creation device for a mask of a solder printing mask for printing solder on a substrate surface,
An opening specification database for pre-registering an opening specification for calculating a mask opening shape of solder printing used for mounting the component by applying it to the land shape of the component mounted on the board, and
A mask opening shape calculating means for calculating the mask opening shape for printing solder on the land by applying the selected opening specification to the land shape of the land on which the component is mounted;
A mask Gerber data creation device comprising: (1)

(Appendix 2)
A mounting library in which the land shape is registered in advance for each component,
In the mounting library, the land shape of each of the components mounted on the substrate is specified, and the mask opening shape calculated for the specified land shape is arranged to perform solder printing on the substrate. Gerber data creation means for creating Gerber data for the mask used;
The mask Gerber data creation device according to appendix 1, further comprising: (2)

(Appendix 3)
2. The mask Gerber data creation device according to appendix 1, wherein the opening specifications are registered in the opening specification database for each type of the different mask opening shapes.

(Appendix 4)
2. The mask Gerber data creation device according to appendix 1, further comprising aperture shape display means for displaying the land shape and the mask aperture shape calculated for the land shape in an overlapping manner. (3)

(Appendix 5)
A macro database for registering a macro instruction of processing control data for opening an opening of the calculated mask opening shape in a mask opening shape unit;
The Gerber data creation means creates the Gerber data by combining the macro instructions corresponding to the calculated mask opening shapes for each of the components mounted on the substrate,
The mask Gerber data creation device according to Supplementary Note 2, wherein the mask Gerber data creation device is provided.

(Appendix 6)
When any one of the mask opening shapes on the created Gerber data is protruding from the land shape corresponding to the mask opening shape, an error display means for displaying that as an error,
The mask Gerber data creation device according to appendix 2, further comprising:

(Appendix 7)
A method for creating Gerber data for a mask of a solder printing mask for printing solder on a substrate surface,
The opening specification for calculating the mask opening shape of solder printing used for mounting the component by applying to the land shape of the component mounted on the substrate is registered in the opening specification database in advance,
Select one of the opening specifications from the opening specification database,
By applying the selected opening specification to the land shape of the land on which the component is mounted, the mask opening shape for printing solder on the land is calculated.
A method for creating Gerber data for a mask characterized by the above. (4)

(Appendix 8)
Register the land shape of each part in the mounting library in advance,
From the mounting library, specify the land shape of each component mounted on the board,
Arranging the mask opening shape calculated for the identified land shape, and creating Gerber data of the mask used for solder printing of the substrate,
The mask gerber data creation method according to appendix 7, characterized by:

(Appendix 9)
8. The mask Gerber data creation method according to appendix 7, wherein the opening specifications are registered in the opening specification database for each of different types of the mask opening shapes.

(Appendix 10)
In order to inspect the calculated mask opening shape, the land shape and the mask opening shape calculated for the land shape are displayed in an overlapping manner.
The mask gerber data creation method according to appendix 7, characterized by:

(Appendix 11)
The macro instruction of the processing control data for opening the calculated opening of the mask opening shape is registered in a macro database in a mask opening shape unit,
For each of the components mounted on the substrate, the Gerber data is created by combining the macro instructions corresponding to the calculated mask opening shapes,
The mask gerber data creation method according to appendix 8, characterized by:

(Appendix 12)
The supplementary note 8 is characterized in that when any one of the mask opening shapes on the created Gerber data protrudes from the land shape corresponding to the mask opening shape, the fact is displayed as an error. How to create Gerber data for masks.

(Appendix 13)
A mask Gerber data creation program for creating mask Gerber data for a solder printing mask for printing solder on a substrate surface,
An opening specification for calculating a mask opening shape of a solder printing used for mounting the component by applying to the land shape of the component mounted on the board should be selected from a pre-registered opening specification database. A procedure for entering the aperture specifications;
A procedure for calculating the mask opening shape for printing solder on the land by applying the input opening specification to the land shape of the land on which the component is mounted.
A program for creating Gerber data for a mask, characterized by causing a computer to execute. (5)

(Appendix 14)
From the mounting library in which the land shape for each component is registered in advance, a procedure for specifying the land shape of each component mounted on the board;
Arranging the mask opening shape calculated for the identified land shape, and creating Gerber data of a mask used for solder printing of the substrate;
14. A mask gerber data creation program as set forth in appendix 13, wherein the program is executed by a computer.

(Appendix 15)
14. The mask Gerber data creation program according to appendix 13, wherein the opening specifications are registered in the opening specification database for each type of the different mask opening shapes.

(Appendix 16)
14. The mask Gerber data creation program according to appendix 13, wherein the computer executes a procedure for displaying the land shape and the mask opening shape calculated for the land shape in an overlapping manner.

(Appendix 17)
A procedure for registering a macro instruction of processing control data for opening an opening of the calculated mask opening shape in a mask opening shape unit in a macro database;
For each component mounted on the substrate, a procedure for creating the Gerber data by combining the macro instructions corresponding to the calculated mask opening shapes;
15. A mask Gerber data creation program according to appendix 14, characterized by causing a computer to execute.

(Appendix 18)
When any one of the mask opening shapes on the created Gerber data protrudes from the land shape corresponding to the mask opening shape, the computer is caused to execute a procedure for displaying the fact as an error. The mask Gerber data creation program according to appendix 14.

  INDUSTRIAL APPLICABILITY The present invention can be widely used in a Gerber data creation apparatus, creation method, and creation program for a solder printing mask used for solder cream printing on a printed circuit board (PCB). In particular, in printed circuit board assembly in which components are automatically mounted by surface mounting technology (SMT), the present invention can be suitably used for a Gerber data creation apparatus, creation method, and creation program for solder printing masks used for solder cream printing.

It is a principle block diagram of the mask opening shape calculation function part in the Gerber data creation apparatus which concerns on this invention. It is operation | movement explanatory drawing of the mask opening shape calculation function part of FIG. It is an operation | movement flowchart of the mask opening shape calculation function part of FIG. It is a principle lineblock diagram of the Gerber data creation functional part in the Gerber data creation device concerning the 1st form of the present invention. It is an operation | movement flowchart of the Gerber data creation function part of FIG. It is a block diagram of 1st Example of the Gerber data preparation apparatus by this invention. It is a figure which shows the external shape of a certain mounting component and its land. It is a figure which shows the component shape pattern in the CAD mounting library corresponding to the mounting component of FIG. It is a figure which shows the example of the opening specification applied to the land shape of FIG. It is a figure which shows the example of the mask opening shape calculated by applying the opening specification shown in FIG. 9 to the component shape pattern shown in FIG. It is a schematic block diagram of the opening shape edit / registration module shown in FIG. It is a schematic block diagram of the Gerber data creation module shown in FIG. It is an operation | movement flowchart of the Gerber data creation apparatus shown in FIG. It is a figure which shows the input screen displayed on the display part 3 of FIG. 6 in the case of pattern number input. It is a figure which shows the input screen displayed on the display part 3 of FIG. 6 in the case of opening classification input. It is a figure which shows the display screen (the 1) displayed on the display part 3 of FIG. 6 in the case of a mask shape check. It is a figure which shows the display screen (the 2) displayed on the display part 3 of FIG. 6 in the case of a mask shape check. It is a figure which shows the registration confirmation screen of mask opening shape data. It is a figure which shows the content of the opening shape database. It is a figure which shows the content of a macro database. It is a figure which shows a protrusion flag setting scene. It is a figure which shows the drawing number and version number input screen of a printed circuit board. It is a figure which shows an error display screen.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Gerber data creation apparatus 2 Calculation part 3 Display part 4 Input part 5 Output part 9 Gerber data creation program

Claims (6)

A Gerber data creation device for a mask of a solder printing mask for printing solder on a substrate surface,
The shape of the solder printing mask opening shape used to mount the component is defined using the coordinates of the graphic data defining the shape of the land shape of the land to which the electrode of the component mounted on the substrate is bonded as an argument. An opening specification database for preregistering an opening specification including a calculation formula for calculating vertex coordinates;
A mask opening shape calculating means for calculating the mask opening shape for printing solder on the land by applying the selected opening specification to the land shape of the land on which the component is mounted;
A macro database for registering macro instructions for processing control data for opening an opening of the calculated mask opening shape for each mask opening shape;
Gerber data creating means for creating the Gerber data by combining the macro instructions corresponding to each of the mask opening shapes calculated for each of the components mounted on the substrate;
A mask Gerber data creation device comprising: Any one of the macro instructions registered in the macro database as a macro instruction for opening a mask opening for printing solder on a land for joining each electrode for each of a plurality of electrodes of the part and a plurality of arrangement angles of the parts. It has an opening shape database that stores macro identification information that specifies
In the macro database, the macro instruction corresponding to the mask opening shape of the same shape is registered for each of a plurality of arrangement angles of the mask opening,
The opening shape database specifies the same macro identification information as a macro command for opening mask openings of the same shape and the same arrangement angle with respect to different electrodes of the same component having different arrangement angles, respectively. The mask Gerber data creation device according to 1. A method for creating Gerber data for a mask of a solder printing mask for printing solder on a substrate surface,
The shape of the solder printing mask opening shape used to mount the component is defined using the coordinates of the graphic data defining the shape of the land shape of the land to which the electrode of the component mounted on the substrate is bonded as an argument. Register the opening specification including the calculation formula for calculating the vertex coordinates in the opening specification database in advance,
Select one of the opening specifications from the opening specification database,
By applying the selected opening specification to the land shape of the land on which the component is mounted, the mask opening shape for printing solder on the land is calculated,
Macro command of processing control data for opening the opening of the calculated mask opening shape is registered in a macro database for each mask opening shape,
Creating the Gerber data by combining the macro instructions corresponding to each of the mask opening shapes calculated for each of the components mounted on the substrate;
A method for creating Gerber data for a mask characterized by the above. Any one of the macro instructions registered in the macro database as a macro instruction for opening a mask opening for printing solder on a land for joining each electrode for each of a plurality of electrodes of the part and a plurality of arrangement angles of the parts. Is stored in the aperture shape database.
In the macro database, the macro instruction corresponding to the mask opening shape of the same shape is registered for each of a plurality of arrangement angles of the mask opening,
The opening shape database specifies the same macro identification information as a macro command for opening mask openings of the same shape and the same arrangement angle with respect to different electrodes of the same component having different arrangement angles, respectively. 4. A method for creating Gerber data for a mask according to 3. A mask Gerber data creation program for creating mask Gerber data for a solder printing mask for printing solder on a substrate surface,
The shape of the solder printing mask opening shape used to mount the component is defined using the coordinates of the graphic data defining the shape of the land shape of the land to which the electrode of the component mounted on the substrate is bonded as an argument. A procedure for receiving an input for selecting the opening specification from the opening specification database in which the opening specification including a calculation formula for calculating the vertex coordinates is registered in advance;
Calculating the mask opening shape for printing solder on the land by applying the selected opening specification to the land shape of the land on which the component is mounted;
A procedure for registering a macro instruction of processing control data for opening an opening of the calculated mask opening shape in a macro database for each mask opening shape;
Creating the Gerber data by combining the macro instructions corresponding to each of the mask opening shapes calculated for each of the components mounted on the substrate;
A program for creating Gerber data for a mask, characterized by causing a computer to execute. The mask Gerber data creation program stores an opening shape database in which macro identification information for designating one of macro instructions registered in the macro database is stored as a macro instruction corresponding to the mask opening shape calculated for each of the parts. From, causing the computer to execute a procedure for reading the macro identification information corresponding to each of the parts,
In the macro database, the macro instruction corresponding to the mask opening shape of the same shape is registered for each of a plurality of arrangement angles of the mask opening,
In the opening shape database, macro identification information of a macro instruction for opening a mask opening for printing solder on a land for joining each electrode is stored for each of a plurality of electrodes of the part and a plurality of arrangement angles of the parts. ,
The opening shape database specifies the same macro identification information as a macro command for opening mask openings of the same shape and the same arrangement angle with respect to different electrodes of the same component having different arrangement angles, respectively. 5. A mask Gerber data creation program according to 5 .

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